Gel electrolyte and preparation method thereof

A technology of gel electrolyte and iodine simple substance, which is applied in the direction of capacitor electrolyte/absorbent, circuit, photovoltaic power generation, etc., can solve the problem of low battery efficiency, and achieve the effect of high battery efficiency, low leakage and high stability

Inactive Publication Date: 2010-07-14
SUZHOU UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This electrolyte has the advantages of non-toxicity, environmental friendliness, and low price; in addition, the gel electrolyte of this series of histidine derivatives has excellent binding properties, which makes the platinum electrode adhere firmly and improves the fill factor of the battery. And form a solid electrolyte dye-sensitized nanocrystalline solar cell with good stability, but the cell efficiency is low, and the photoelectric conversion efficiency is 1.99%

Method used

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  • Gel electrolyte and preparation method thereof

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Effect test

Embodiment 2

[0031] 0.4g, KI0.1g, tert-butylpyridine 0.09g, iodine simple substance 0.12g, mixed and stirred for 10h at 70°C to obtain a gel electrolyte, which was dropped while hot between the photoanode dye titanium dioxide film and the Pt electrode, and further heated The gel electrolyte is completely permeated into the titanium dioxide membrane porous membrane, and then encapsulated to obtain a quasi-solid-state all-ionic liquid gel solar cell. At room temperature, use a xenon lamp to simulate sunlight with a light intensity of 100mW / cm 2 Under the conditions, the measured battery (effective area 0.16cm 2 ) The photoelectric conversion efficiency is 4.5%.

Embodiment 3

[0033] 4.5g, 0.95g, 0.25g, 0.05g NaI, 0.1g tert-butylpyridine, 0.6g elemental iodine, mixed and stirred for 1 hour at 140°C to obtain a gel electrolyte, which was dropped into between the photoanode dye titanium dioxide film and the Pt electrode while hot, and further heated The gel electrolyte is completely permeated into the titanium dioxide membrane porous membrane, and then encapsulated to obtain a quasi-solid-state all-ionic liquid gel solar cell. At room temperature, use a xenon lamp to simulate sunlight with a light intensity of 100mW / cm 2 Under the conditions, the measured battery (effective area 0.16cm 2 ) The photoelectric conversion efficiency is 3.2%.

Embodiment 4

[0035] 0.075g, 0.6g, 0.6g, LiI0.3g, 0.3g tert-butylpyridine, 0.01g elemental iodine, mixed and stirred for 20h at 50°C to obtain a gel electrolyte, which was dropped into between the photoanode dye titanium dioxide film and the Pt electrode while hot, and further heated The gel electrolyte is completely permeated into the titanium dioxide membrane porous membrane, and then encapsulated to obtain a quasi-solid-state all-ionic liquid gel solar cell. At room temperature, use a xenon lamp to simulate sunlight with a light intensity of 100mW / cm 2 Under the conditions, the measured battery (effective area 0.16cm 2 ) The photoelectric conversion efficiency is 6.3%.

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Abstract

The invention relates to a solar battery assembly and a preparation method thereof, and discloses a gel electrolyte and a preparation method thereof. The gel electrolyte comprises the following components in parts by weight: 5-70 parts of polyion liquid, 15-90 parts of non-polymerizing ionic liquid, 0.5-5 parts of iodide, 0.5-5 parts of additive and 0.5-10 parts of iodine. In the invention, the content of the series of used polyion liquid reaches 50-70 percent to the maximum, the gel electrolyte has very good compatibility and is in solid state, and due to the ionic type structure, the electrolyte keeps higher conductivity and iodine mobility. In addition, the gel electrolyte does not contain any traditional organic solvent, can not cause pollution to the environment and can not easily leak. The gel electrolyte can be easily obtained, and has the advantages of low price, easy packaging, very high stability of the battery, very high battery efficiency, less battery assembly procedure and low cost.

Description

technical field [0001] The invention relates to a solar cell component and a preparation method thereof, in particular to a gel electrolyte suitable for dye-sensitized solar cells and a preparation method thereof. Background technique [0002] Electrolyte is the core component of solar cells, especially dye-sensitized solar cells. It mainly plays the role of transporting redox pairs, and its performance directly affects the efficiency of solar cells. [0003] Electrolytes for dye-sensitized solar cells exist in various forms such as liquid, gel, and solid (see: Dalton.Trans.2008, 2655-2666; Adv.Funct.Mater.2009, 19, 1-16; Adv.Funct.Mater .2007, 17, 2645-2652). Among them, liquid electrolytes mostly use organic solvents as electrolytes, such as acetonitrile and methoxypropionitrile. Such liquid electrolytes have the disadvantages of being volatile, difficult to package, poor stability, and high toxicity (see: Adv. Funct. Mater. 2007, 17, 2645-2652; Electrochimica Acta, 2006...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/022H01G9/20H01M14/00H01L51/44H01L51/48
CPCY02E10/50Y02E10/549Y02P70/50
Inventor 严锋赵杰孙宝全
Owner SUZHOU UNIV
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